Legislation that would reauthorize the Federal Aviation Administration for six months and provide tax relief to victims of recent hurricanes could fail on the House floor Monday evening amid Democratic opposition.

The minority party’s support is needed to pass the measure under a fast-track procedure known as suspension of the rules. Two-thirds support is required for passage on the suspension calendar, meaning at least 50 Democrats would need to vote “yes” if all 240 Republicans support the legislation.

Senate Majority Leader Mitch McConnell at a news conference Wednesday in which he announced the deal struck by President Donald Trump and Democratic leaders on the debt ceiling. (Tom Williams/CQ Roll Call)

“Oh, boy.”

That was House Republican Conference Chairwoman Cathy McMorris Rodger’s reaction when she heard President Donald Trump backed the Democrats’ request for a three-month debt limit extension, against his own party leadership’s urging.

Congress has barely a month to pass a spending bill to avoid a government shutdown, even as President Trump pushes for border wall funding and pressure builds to approve an aid package for Hurricane Harvey. But as CQ’s Ryan McCrimmon explains, a shutdown is probably still unlikely.